Akira (アキラ) is Blue Mask of the Maskmen. He was scouted by Sanjuro Sugata after seeing him using his double-sword technique in his everyday life. He has a habit of bringing apples, his favorite fruit, with him, which he usually drops carelessly. He is also one of the main protagonists.
He is the youngest Maskman at 16 (40 in Gokaiger), a Chinese boxer, and a twin straight sword expert. His father died while he was young and he was an only child. He moved to Tokyo in order to perfect his martial arts ability and to join the Maskmen. Akira unknowingly enters a Tube-rigged tournament. He wants to win to prove to his mother that he is successful in his chosen pursuit. Always cheerful, he loves apples and the idol Youko Minamino. In episode 44, he became the legendary Imperial Underground Fencer Unas after being possessed by the spirit of a swordsman of the Royal Underground Empire through the Yoroi Doggler, the Legendary Knight's Vassal. Unas was originally being summoned by some of the Royal Underground slaves of Tube in hopes that he would help set them free from Zeba's tyrannical rule. Seeing that Akira was the next Unas, Tube concluded that he is possibly from the Underground, or is somehow related to them, but the truth is that the underground slaves mistook Akira as an reincarnation of Unas when he saved a group of slaves earlier in the series.
Akira and his team joined up with the other nine Sentai to stand behind the newest Sentai, the Turborangers, as they faced off against the Hundred Boma Tribes.
Blue Mask is among the Sentai warriors seen in clips when Daimon Tatsumi (GoYellow) lectured Kai Samezu (GaoBlue) about the past Sentai technical warriors and their fighting spirit.
Legend War==. Years later, Akira fought alongside not only his own team, but every single Sentai ranger in existence, against the Empire of Zangyack when it attacked the Earth in the Great Legend War. After fighting against hundreds of Gormin and their Zgormin commanders. Kaijou noticed the fleet moving towards them, he gathered all the Rangers together and gave them the order to sacrifice their powers to wipe out the first invasion's armada. The Blue Mask powers are later used by Joe Gibken via the Ranger Keys.
"The way you fight together, having faith in each other, is beautiful." ―Akira[src]His team's Greater Power was initially taken by Basco ta Jolokia. It is unknown if he was the Maskman from whom it was taken. After Basco's defeat by Captain Marvelous, he along with representatives of the four other teams (Sun Vulcan, Changeman, Flashman and Fiveman) whose greater powers were taken by Basco, contacted the Gokaigers and granted them their greater powers and approval. He said that the way they fight together, having faith in each other, was beautiful.
Farewell Space Pirates
After the defeat of Ackdos Gill, Captain Marvelous returned all the Ranger Keys to the former Sentai heroes. It is assumed Akira and his teammates received their keys, allowing for them to get their powers back. Final Ep.: Farewell Space Pirates
Super Hero Taisen
Akira, alongside his team, among the majority of the Super Sentai heroes, was caught up in the "Super Hero Taisen" incident which eventually resulted in the Super Sentai teams and Kamen Riders joining forces to defeat both Dai-Zangyack and Dai-Shocker
- Masky Tank
- Land Galaxy / Galaxy Robo
- Masking Brace
- Laser Magnum
- Masky Tonfas
- Blue Mask Roader
- Meditation Gesture: Retsu (two fists together with index finger from left hand sticking out), which signifies dominion over time and space.